Home / 71,157.80-98,196.36-39,328.04

Finding the Fourth Proportional to 71,157.80, 98,196.36 and 39,328.04

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Solution

The fourth proportional to 71,157.80, 98,196.36 and 39,328.04 is: 54,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,157.80 : 98,196.36 = 39,328.04 : x
  2. Step 2: Convert to fraction form
    71,157.80/98,196.36 = 39,328.04/x
  3. Step 3: Cross multiply
    71,157.80x = 98,196.36 × 39,328.04
  4. Step 4: Simplify right side
    71,157.80x = 3,861,870,373.93
  5. Step 5: Solve for x
    x = 3,861,870,373.93/71,157.80
  6. Step 6: Final answer
    x = 54,271.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.